Background:The pregnancy rate in fixed-time insemination (FTAI) programs in beef cattle is affected by several factors, including the size of ovulatory follicle (OF). Induced ovulation of small OF (≤11 mm) reduces the chance of pregnancy after FTAI when compared to ovulation of larger follicles (≥12 mm). Hormonal treatments to enhance the follicle growth have been widely used in comercial beef cattle systems, aiming to improve the development of a dominant follicle. The objective of this experiment was to evaluate the effect of treatment with eCG or FSH at the time of progesterone implant removal on the diameter of OF, final follicle growth and pregnancy rate in beef cows. Materials, Methods & Results: Three hundred and seven suckled beef cows with body condition score 2.80 ± 0.24 (1 to 5 scale) and 45 to 70 days postpartum were synchronized to FTAI. On day 0, intravaginal implants containing 1 g of progesterone, were inserted and administered 2 mg of estradiol benzoate (EB), i.m. On day 7, intravaginal implants were
Pode-se encontrar aproximações entre a proposta fenomenológica de Edmund Husserl (1859-1938) com algumas ideias da Psicologia Analítica de C. G Jung (1875-1961), principalmente no que se refere à crítica que ambos promoveram em relação à Psicologia científica e à concepção de uma Psicologia mais humana. Esse estudo, seguindo o procedimento da pesquisa qualitativa teóricobibliográfica, teve o objetivo de explicitar e, em seguida, aproximar as duas propostas epistemológicas e metodológicas, trazendo os conceitos e estruturações da Fenomenologia e da Psicologia Analítica, correlacionando os pontos de convergência nos quais se equiparam e/ou complementam. Como resultado, observou-se que, tanto Husserl quanto Jung, elaboraram outra concepção filosófica, reagindo ao materialismo e naturalismo positivista; ampliaram o conceito de experiência (empiria); desenvolveram um método de investigação que considera a subjetividade pura; e, por fim, fundaram uma nova Psicologia.
RESUMOO audiovisual tem sido utilizado, ao longo dos anos, de forma bastante positiva em contextos educativos. Além do potencial lúdico, o audiovisual desempenha importante papel de disseminação de informação nas sociedades contemporâneas. Nesse sentido, este artigo relata a experiência desenvolvida na Universidade Federal de Uberlândia (UFU) durante o primeiro semestre de 2016. Por ser um espaço privilegiado de debate e inovação, a UFU abriga várias startups (empreendimentos inovadores) que foram criadas e gerenciadas por estudantes. Cumprindo a premissa maior da extensão universitária, a produção de um documentário e de um site teve como objetivo fazer com que estas empresas se tornassem conhecidas pela comunidade em geral (interna e externa), num processo de valorização da inovação destes alunosempreendedores.Palavras chaves: startups; inovação; audiovisual; extensão universitária. ABSTRACTAudiovisual resources have been used over the years in a very positive way in educational settings. In addition to their recreational potential, it is clear that audiovisual resources have an important role in the dissemination of information in contemporary societies. In this sense, this article reports an experience developed at the Federal University of Uberlândia (UFU in the Portuguese acronym) during the first semester of 2016. As the UFU is a privileged space for debate and innovation, it is home to a number of startups developed and managed by students. Fulfilling the major goal of outreach activities, the production of a documentary and the creation of a website aimed at making these business known by the community in general (internal and external), valuing the innovation created by these entrepreneur students.
Presynchronization treatments associated with the Ovsynch protocol and its modifications have been used to improve reproductive performance in lactating dairy cows. Use of a PG-3-G protocol is indicated to increase the number of cows in the most ideal stage of the oestrous cycle (Days 5-9) at first gonadotropin-releasing hormone (GnRH) injection of the Ovsynch protocol. The objective of this study was to compare fertility of lactating dairy cows submitted to Ovsynch-P, preceded by PG-3-G protocol or not. A total of 86 Holstein cows [body condition score of 2.6±0.2 (1-to-5 scale), 3 and 10 years old, mean milk yield of 28.1±7.9kg per day, and 118±56 days postpartum period] maintained in a semi-intensive system were blocked by parity and date of calving and randomly assigned to groups: control (n=44) and PG-3-G (n=42). On Day -10 cows in the PG-3-G group received an injection of 500µg of sodium cloprostenol IM (Estron, Agener União, Brazil), and on Day -7 they received 0.05mg of Lecirelin IM (GnRH, Gestran, Agener União). On Day 0, all cows had the first dose of Ovsynch GnRH injection and a 1-g progesterone intravaginal implant (P4, Primer, Agener União). On Day 7, a dose of sodium cloprostenol was administered to induce corpus luteum (CL) luteolysis, and the P4 implant was removed. Forty-eight hours later, cows were injected with the second dose of GnRH and inseminated 12 to 18h later. The presence of CL and ovulatory follicle (OF) diameter were determined by transrectal ultrasonography (Aquila, Pie Medical, Maastricht, the Netherlands) on Days 0, 7, and 9, and gestation diagnosis was done on Day 30 after AI. Statistical analysis was performed using ANOVA, chi-square, Mann-Whitney, and Pearson correlation tests in SPSS 18 (Armonk, NY, USA), considering P=0.05 significant and a tendency when P>0.05 but P=0.10. Incidence of CL on Day 0 tended to be more frequent (P=0.1) in the PG-3-G group (78.6%) compared with the control (59%), but CL presence on Day 7 did not differ (P=0.98) between the groups (35 and 34%, respectively). Based on the odds ratio, PG-3-G cows were 2.16 times more likely to have a CL on Day 0. The mean diameter of OF on Day 9 was smaller (P<0.05) in PG-3-G cows (12.6mm) than in control cows (15.3mm), and a negative correlation was detected (r=−0.29) between the presence of CL on Day 0 and the diameter of OF on Day 9 (P=0.05). Pregnancies per AI tended (P=0.08) to be higher in PG-3-G cows (52%) than in control cows (34%). In summary, cows submitted to presynchronization with the PG-3-G protocol presented higher frequency of CL on Day 0 and tended to have a higher pregnancies per AI compared with control cows.
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